Surfacing-machine.



G. BUE

GH FILED SE.PT.10, 1905A SURFAGING MAGHNE.

APPLIGMION FILED Patented July 30, 1912.

5 SHEETS-SHEET 3.

G. BURWELL. SURFAGING MACHINE.

APPLICATION FILED SEPT-10. 1908.

,.. J @n j?" 4o -ing nar tends to distribute the material resserre.

.narran 4irane GEORGE BUBWELL, -0F LANSING, MICHIGAN.

sURrAcING-MACHINE.

Specication of Letters atexit.

rammed .muy se', freie.

Application filed September 10, 1908. Serial, No. 452,472. I

and useful Improvement in Surfacing-Machines, of which the following is a full,-

clear, concise, and .exact description, reference being had to the accompanying drawings, forming a partof this'specication.

My invention relates to surfacing 4'ma-4 chines, and is particularly adapted to more economically distributing, laying, smoothing and 'finishing surfaces, both of coarsely and lframe 'wo-rk, which is so constructed as toI finely divided material.

The preferred form of my machine lends itself more particularly to the laying of concrete, cement, crushed stone, or other finely divided material.

Generally speakino', the embodiment of my invention shown herein comprises a allow it. to be moved along over the surface to be worked upon, either manually or otherwise, and is furthermore supplied with rollers at either end thereof which ride on rails, so as to guide the machine over the material to be worked, and also to allow the machine to be moved back and forth with greater' ease.

VVhen'my machine is applied to the laying of cement sidewalks, the first operation after the bed of cinders has beenvlaid is toY apply a mixture of crushed stone, sand and cement, which has to be smoothed evenly over the surface of the bed of cinders. This I accomplish by means of a smoothing bar, which is removably fastened to the machine, and as the-machine is pushed along over the surface of the mixture, this smoothevenly over the surface. To further accom` plisli this result, the b ar isy removed and aiiother applied, which is rso constructed as vthe crushed stone, etc.

which is so constructed as td give the ma.

terial a finished surface.I This plish hy means hereinafter [more f" scribed. After these operations have'been gone-through 'with the sidewalk or iioor is practically finished, with tne exception of edging and grooving. These operations are accomplished by means of new and 'novel means to be described. I p l y In. the accompanying drawings'Figui-e 1 is a top plan view;` Fig.`2 is a-- section on line 2 2 of Fig. 1; Fig. 31s an end elevation; Fig. lv is an enlarged det-ail view of Fig. 2; Fig. \5 is a perspective detail -of the" marking bar; Fig is a perspective view of one end of the edger; Fig. 7 isa front elevation of the groover.; Fig. S is a section online 8 8 of Fig. 7 Fig. Sis an enlarged detail view of the'crank aini and sprocket wheel, which are used in connection with the surfacer; Fig. 10 is a sectionI on line iff-,- i() of Fig. 14:; Fig. 11 is a top plan view c l ene of the smoother bars; Fig. 12 is an end vill-"1." of the smoother bar shown in Fig. 1i; Fig. 13 is a top plan view of one of the cement surfacing bars; Fig. 145 is 4a.v top `plan'` view of the linishing bars; Fig. 15 is a sect-ion on line 15 1 of 1l; Fig. 1G is a section on line 16-1G of Fig. 13; Fig. 17 isa detailed View of the roller bearings v n l Referring more specifically to the drawings, I provide the tracks or guide. rails 1 1, upon which the machine is adapted to slide. The machine herein shown is provided withy 'side frames 2 2, preferably made of angle iron; which are held rigidly together :by means of a bolster, 3, which eX- tends throughout the width of the machine. This bolster is also preferably .iliade of angle iron. The side frames 2 2 arerprovided with ant-ifriction bearings 'lL-i, which ride on and slide againsty the guide rails 1 1, therebyallowing t-heniachine to be operated withgreater ease. vi also provide the bracing members 5 5, whicliarefastened to the side frames and to the' bolster, thereby giving the. machine more stability and rigidity. Thelmachine is also provided with a rocking bz .which extends thefull width of the machine and hasfits ends journaled vin the `side frames. 'Connected to this rocking barv 6 are the arched supporting members 7 8, one`- `oflgivhich is v. fastened rigidly to said rockerbar.; These supporting members 7 8 are pirotally connected to the right' angle shapedgsupport 9, adapt- .ed toearry the smoother aiidtinishing hars.

ice

provided for the purpose of lifting the right-angle shaped support 9 out of operation when not in use. This arm l has threaded into it the set screw ll, Which,

bears upon the lug 12, which is fastened to l v the bolster3 fo-r the purpose of adjusting the support 9 to its proper height according tothe thickness of the flooring.

f transversely of the machine.

'The arcl ed supporting member', which is carriedfby the rocker bar 6, is bifurcated' at 13. Between the bifurcations is rigidly mounted the adjusting arm 14, which is prolvided with two thumb screws l5 and 16.

- These thumb screws are for the purpose of;

.adjusting .the sup'port 9 to a erfect level t is obvious, by referring to the drawings, that by turni in'g the thumb screw 15 that the supporting members 8 will be raised or lowered.' The thumb screw 16 is for the purpose of assist ing the screw 15 in keeping the arm 8 in a given position. This adjustment is due to the fact that the adjusting arm 14 is rigidly fastened to the bar 6, while the 'supporting arm 8 is loosely mounted thereon, and is lheld in position. by the thumb screw 15,

which threads itself into the member 14.

Permanently fastened to the bolster 3 is lthe rearwardly projecting bracket 17, one .end of which is provided with means for pivoting the. screw threaded member 18, into which is threaded the adjusting screw 19. This adjusting screw is supplied with a journal 20, which in turn is pivotally connected with the tilting' arm or lever 21. Said arm or lever 21 has permanently fastened to its forward extremity the supporting member 9, .and through its rearward end passes the 'journal 20. It-'will be seen that by-operating the adjusting screwv 19 either; to the lrightforleft the arm or lever 21 will beraised or lowered. This will tilt ling an incline member ,9, thereby presentsurface to the material to be worked. This is due to the fact that the arm or lever 21. is rigidly fastened to the support 9, and the arched members 7 8 are pivotally ngj'inted on the rod 6.

Upon the rocker bar 6 is loosely journaled the supporting "the sleeve or collar 22. Said collar 22 is 4 provided withthe upwardly extending arm 23, anda downwar ly projecting arm 24.

' At the upward extremity of the arm 23 is pivoted the downwardly projecting arm 25, at the lower extremity of which isvloosely mounted the internally screw-threaded memlet ber 26a, which is ada ted to receive the adjustingscrew 19. T e arms 23 and 25 are provided near their centers with bosses, which are adapted to receive the outwardly rojecting lugs 26-27 respectively. These ings are -for the purpose of receiving the screw-threaded member 28, which by turning one way or the other determines the degree of inclination of the supporting bar 9, the use `ofwhich'will be described later.

The downwardly projecting arm 24 is piv.

otally' connected to thev link 29, which in turn is connected to the operating lever 30. Said lever 30 'is pivoted near its conter, and is supplied with the handle 31, by which means the machine is operated.

' When the machine is 1n operation it is necessary to work back and forth upon the Surface of the material that is being laid, an'd this necessitates a tilting motion to the bar 9, so as to present an inclined face on the forward movement,A vso that it will have a troweling effect upon the'materi'ah and on `the return movement the bar 9 will assume a horizontal position, so a's not tio touch'or injure t-he material which has already been laid. This-I accomplish by means of the tilting mechanism hereinbefore described. In this manner the bar 9 may be setto a permanent inclination, or the screw 19 `may be moved `into its alternate socket so that the said bar 9 may be tilted by the handle 31 as the machine moves. Upon one of the side frames 2 I furthermore provide the rod, or. support, 32, 'one end of which 'is pivotally connected to said side^ f1'ame. 'At' the opposite/nd of said supporting rod 32 I provide means for operatingl the surfac ing mechanism. .This means vcomprises a crank handle 33, journaled' in the member 34. Fastened rigidly to the opposite end ofthe crank handle 33f'is provided the gear wheel 35, which, when a chain or belt 82 is applied, will impart motion to the surfacing. mechanism when the crank handle 33 is operated.

The side frames 2 2 are also provided with downwardly projecting plates 36, which are of suflicient length to extend below t-he'surface of the concrete, cement, etc. These plates 36 are for the purpose of evenly cut;

ting away the superfluous material" along the edges-as the machine is drawnalong over the sidewalk. l Referring more specifically tothe anti-fric;

tion bearings l1 4, which are mounted. nea-rmounted lin the support 41. Said support is pivoted in the and is so constructed as to carry said rollers 39 40 u'ion the outwardly extending-lugs 43 44, hich are disposed at right angles to the piece 41. It will be evident that as earing plate 38 at 42,

Y- tened to the bar 44, so as to keep said bar 1 bolster, ywhich is, adapted to be raised and the machine is operated to and fro the support 41 will have a swinging motion, owing to the fact that it is pivoted at 42 lfor the purposeV of affording a little lost motion at the end .of each stroke of the machine. I

a connecting lii'ifkfl, one end of which' is fastened lto the rod 50, and has its opposite end connected to the' operating link .80, thereby imparting a rocking mation yto the lroller bearings l5-4, the purpose of which has'hereinbeforebeendescribed.

5I ,providel av cutting bar 44a upon the lowered by means .of the handle 45, which is pivoted to the bolster 3, the opposite end ot which is loosely fastened' to the Acutting .bar .TheY linksl 46 Aare alsoconnecte'd to the bolster 3 and the bal' 44a .to assist in supportl ing said bar 44a. I also'provide'the tension coil spring 47, one end of which is fastened to the bolster', and has its other end fasV- up and out of the Way when not in use. The yobject of the cutting bar is .to mark a given point so that it willbe known when to operate a groover, which is hereinafter to .be described.

- The marking bar .48 is mounted uponthe i 'side frames 2--2 at the forward end thereof,

"and is for the purpose -ot marking at a given point where the cutting -bar 44a should be broughtl into operation. .Said bar 48 is i provided wit-hA an inwardly projecting mem- -bei' 49, whose end` is turned downwardly and shaped so as to .presenta sharp edge to the material. I also provide the supporting member 49, into which' the marking ybar 48 Having thus described, my machine, I Willv now describe more in detail the functions of' the diiierent partswhich are used to accomplish the different results.

yThe first result to be accomplished is to spread. evenly-the cinders which form the.

bed fer the other mixtures. This is done by means er". attaching v'the right angular v.shaped bar tofthe supporting member 9 .integral withthe bar 9.

by nieansfof 'thefapertures 53, vwhich are adaptedto. receive the lugs 54, which are Ihus by operating l the `machine back andvfoi'th .the bed will be prepared for the next layeiglwhich is a combination .of sand, crushed stone and cement. When this'llayer is .ready izo-be distributed over the bed of cinders,--Iapply the spread.

ing means shown in Fig. 11, which is pref- A erably madecf two pieces of weod 55456, placed at fright angles .to each other. The

angular shaped bar 57 is fastened te the longitudinal angle iron bars 77-78, which 4is journaled in the member 34, which is also l 4,

part 55 by means of screws, or any other suitable way', land which is in turn fastened to'the supporting bar 9, and is supplied with the same inea-ns as the bar 52 for attaching it to thesupporting bar 9. The member 57 is cut away Iat 58 to allow the same to be 'adj usted to the bar 9 without ythe rinterference of the arched support-ing members 7 8," It is evident that when the 'machine is pushed along, the material will come in Contact with the face 56,y land will be spread or distributed -evenly over the surface of thel bed of cinders.

In Figs'. '13 and 16 I show the means whereby the surface, which is a coating of cement, is evenly distributed. This device is also supplied with the same means for attaching it to the lsupporting bar 9, and 'is made up of laminated pieces of metal, 59-60,` for strength and to present as smooth -a face to the material as possible.

In'Figs. 10 and 14 I show the means employed for finishing the surface of the coating of cement. It is found necessary to present al circular motion to this face', so as tofurther smooth its surface. This I accomplish by attaching the bar 61 to the supporting member 9. For doing so I supply the same means as previously used. The bearings 62,63 and 64 are rigidly fastened tothe bar 61, and carry the shaft 65, having the gear Wheel 66 mounted at one end there of for the purpose of operatingthe beveled gears 67-'68- The -standards 69 and 70 are also' fastened to the bar- 61 at their lowerA ends, and through 4which passes the crank shaft 7l, having fastened to their yupper .ends the beveled gears 72 and 7 3, and having yend terminates with; a downwardly project ing member 7 5 adapted to rotate in the journal 76, which is held rigidly between the in turn are fastened t0 the plate-79. The ao ends of said plate 79 are turned upwardly at 80, so as to be able to carryy t-he smoothing member 8l. It is obvious thaty when the gear wheel 66 is rotated, it will rotate the beveled gears (S7-68, and thereby impart motion to the beveled gears 72-73, which being fastened to the shaft 71 causes the plate 79 to have a circular motion. As the smoothing member 81 is fastened to the plate 79, it Willalso receive a circular motion, thereby giving the material a4 highly finished surface. In order -to operate this mechanism, I employ the means shown in Fig. 9, which constitute a gear wheel 35, and 'W5 supplied rwith the crank handle 33. A'llink chain 82 isvoperated by means of the gear 35, which also operatesv the gear wheel 66, thereby imparting motion to the mechanism hereifnbelt'ore described. I furthermore provide a novel means for grooving the cut made bythe cutting bar 44a, one purpose of which is to give the surface of the walk the appearance of being made of a solid block of stonc.` ToA accomplish this, 'I' slidably mount the groover 83 upon the bolster 3,- 'said `groover being removable-at will.

upwardly extending support 84 hasy slidablyv The mounted thereon the collar 85. Said collar' 85 is pivotallymounted on-the supporting yoke 8G, which is adapted to slide upon the' bolster v3. lThe yoke- 86 is preferably made V-shaped, and is adapted to straddle and ride upon the .bolster 3. Said supporting.

yoke is provided with the antifriction rollers 87, which bear upon the faces and tip-I I provide the upwardly projecting lugs 92,.

which are supplied with the set screws 93, the functions of which will hereinafter be described.

The arm 91 has journaled near its upper end the lug 94, into which is adapted to be iitted the double bell crank lever 95, one end of which is loosely mounted into the swivel 96, and has its opposite end loosely journaled into the lug 94. Said bell crank lever has an upwardly extend-ing member 90", to which is fastened the operating handle 97. To the swiveled member96 the connecting link 98 is mounted, whose upper end terminates in the hanger 99, which in turn is mounted 'upon the forwardly extending arm 100. Said arm is provided with the collar 101, which is loosely mount 'd upon the supporting rod 8 4, to thereby pri)- 'vide a support for members 98 and 99. The upwardly extending arm 91 is provided with the inwardly extending lugs 102, and 'is also adapted to receive the outwardly extending pin 103, which is fastened inte-- grally with the sliding collar 8,5', the object of which will be described in the following.

The shoe 104' is fastencdat the lower extremity of the rod or support 84, and has for its object the purpose of smoothing the cut made by the cutter bar 44a. To acv complish t-his, I provide upon the lower face of said shoe the downwardly extending rib 105 which is of such shape that it will give to the'cut a rounded edge. The heel of said shoe 104 is slightly rounded upward at 105. This is done to prevent the shoe from injuring the surface of the material on its backward, or return, stroke.

It is obvious that when power is applied,

.either back or forth, tothe handle 97, it

member 91.

91, by reason of the fact that said member is pivoted in the bearing 90. This will tiltthe direction of the shoe either upwardly or downwardly. This is accomplished by the pin 103, which is inserted in the member 91, and'is integral with `the collar 85, said collar 85 being pivotally'ifastened to the yoke 86. It will be seen thatv when the member 91 is operated, it will describe lan are of a circle, and the pin 10B-being inserted into member 91 will ride;` with the said meliber and tilt the shoeV either up.- wardlyiir downwardly 4when the :pin passes the center of said arch described bythe After these operationshave been gone through, the walk'is practically finished, with the lexception of finishing the edges. To accomplish this, I `provide thel bar 106, which carriesnpon its ends .the4v shoes 107. These shoes are provided with' the downwardly projecting iangev 108,A

which extends over the edge of the material,

and is so constructed on its inner face that it will give to the edge of the Walk a slightly rounded contour.l When this result isv desired to be accomplished, the bar 106 is attached to the supporting member 9 of the machine, and the whole is slid along upon the tracks 1-1 from 'one end of the' walk to the other.

Having thus explained my invention, H

what I cla-im as new and desire to cover by Letters Patent is: y i

1. In a device of. the class described, the combination with rails, of a framework movable to and fro along said rails, means mounted on said framework for smoothing material over which said framework is moved, both backwardly and forwardly and a device for tilting said means when said framework'changes its direction o f motion.

9. Ih device of the class described, the

combination with rails, of a framework movable to and. fro along said rails,means mounted on salti framework for smoothing lio.

material qyer which` said framework' is moved, a device for tilting said means when said framework changes its direction of -motion and an operating handlemounted on tion, an operating handlemounted on said" framework for movlng same both forwardly described; the' and backwardly, and rollers interposed'be-gj,

tween said framework and said rails. 1-

4. In a device of the Aclass described, the

combination with rails, of ai:fra'nlewo'rkv movable to and fro along saidailifa hori` Zontal'tool mounted upon'said framework for operating upon material over which said framework is movable, a device for t1lt1ng said tool when the motion of sa1d framework is reversed, said tool serving to smooththe surface of the material over which it is moved, both backwardly and forwardly.

5. In, a device of the class rilescribed, the combination with rails, of a movable framework mounted on said rails, a removable tool transversely mounted on said framework for sn'aoothing n'laterial over which said framework is movable both backwardly and forwarzjlly and'a device for tilting said toolv when the motion of said fraineworkis reversed.

(l. In a finishing machine, the combination with' rails, of a frzunework movable the/feon to and fro, a roughing tool adapted/'for transverse mounting on said framework for smoothing` Irough material over which said framewofkfy is movable both in its forward and `'backward movement together with means for tilting said tool when the direc-y tion of motion of said framework is reversed. l

7. In a machine of the class described, the combination with rails of a movable framework operating upon said rails, means whereby said .framework may be propelled,

a transverse tool/'for operating upon material over which said framework is movable mounted 'transversely tothe direction of motion thereof, and'means for impartingl a circular motion to said tool substantially in4 the plane of the framework for smoothing material over which said framework is movable. /I'

8In a machine of the class described, the combination with rails of a movable framework operating' upon said rails, means through which the framework may be propelled, a transverse tool for operating upon material over which said framework is movably mounted transversely to the direction of motion thereof, and a handle for imparting a. circular movement to said tool substantially in the plane of travel/of the framework for smoothing material over which said framework is movable.

9. In a machine of the class described, the

combination with rails of a movable frame-- work operating upon said rails, meansv through which the framework may be propelled, a transverse tool for operating upon material over which said framework is movably mounted transversely to the direction of motion thereof, a handle for/imparting a circular motion to said tool substantially in the plane of the framework forsmoothing material over which saidframework is movable, and asprocket "chain and sprocket Vwheels interposed between said handle and said tool."

10. In a machine of the class described,

circular motion to said toolsubstantially in the plane of the framework for smoothing material over, which said framework is movable, a sprocket chain and sprocket wheels interposed between said handle` 'and said tool for imparting the movement of said handle to said tool, and a bar kmounted on said framework on which said handle and sprocket wheel is mounted.

' ll. In a device of the class described, the combination with rails, of a movable framework op rating along said rails, av tool adapted for mounting in said framework transversely of the direction of motion thereof to operate upon material over which said framework is movable, and means inter.- posed between the tool and the same framevwork to tilt the said tool the operation of said means depending upon a change in the direction of motion of the said framework.

. l2. In a device of the class described, the combination with rails, of a movable framework operating along4 said rails, a .tool

adapted for mounting'on said framework transversely of the direction kof motion thereof to' operate upon' material over which said framework is movable, means interposed between the tool and the said framework to tilt the said tool, depending on a change of direction of the said framework, and means through which the framework may be propelled.

13'. In a device of the class described, the combination with rails of a framework movable to and fro over said rails, means through which the framework maybe propelled, a tool mounted on said framework for operating upon material over which said framework is movable both forwardly and backwardly, a device for tilting said tool when the motion of said lframework is reversed, and side cutting members mounted in said framework for defining the width of the material to be operated upon.

14. In a device of the class described, the combination with rails, of a framework movable along said rails, means through which the framework may be propelled, a tool for operating upon material over which said framework is movably mounted in said framework, means interposed between said framework and said tool fortilting same at will, and means interposed between the tool and said framework for at will rigidly se# vcuring said tol tothe framework to prevent said tilting.

15. In a machine of the class described, the combination with rails, of a framework position ofv said framework. 1

1G. In a'machine of the character described, in combination withrails of a framework movable to and fro along said rails, said rails being onoppo'site sides of said framework, ay tilted tool adapted for transversely mounting on said framework for operating upon material between saidrails over which said framework is movable both forwardly-andA backwardly, means for varying the tilt of said tool and adjustable supporting means for leveling said tool transversely of the framework;

17. In a machine of the class described, in combination with rails, of a framework movable to and fro along said rails, said rails beingfon opposite sides of said frame work, la tilted tool adapted for transversely operating upon material vbetween said rails over which said framework is movablebothv backwardly and forwardly, means for varying zthe tilt of said toolnnd adjustable supporting devices for leveling said tool transversely of the framework.

18. In a machin(` of the class described, the combination with rails, of a movable framework operating along-said rails, a tool transversely mounted on said framework for operating' upon 'material over whieh said framework is movable, means for propelling sai framework, and devices interposed be.

tween said means and saidtool to tilt said tool the operation of said .devices depending upon a-chang'e in the direction in which said framework -is movable. 4'

19. In a machine ofthe class described,

framew'vork operating alongsaid rails, a tool A transversely mounted on said framework fer operating upon material over which sai-(l framework is movable, means Afor propelling said framework, and a handle' interposed between said means and said tool 11o/tilt said tool the operation of saidvdevies depending upon a change in the direction in which said framework is movabl/e.

for tilting said tool,` depending. on a change' of direct-ion of said tool;v y

In witness whereof, I hereunto subscribe my name this twenty-ninth day of August A. D., 190s.

GEORGE BURVVELL.

Vitnesses:

' HARRY E. HOOKER, Imm J. BURWELL.

the emnbinationv with rails, of a movable 

